// ++ -- += -= *=

let s = '55'
console.log(s)
console.log(++s)

let n = 3
console.log(++n) //4
console.log(n+=2) //6
console.log(n--) //6
console.log(--n) //4
let a = ++n
console.log(a--) //5
console.log(a--) //4
console.log(a) //3

console.log('-'.repeat(50))
for(let i=4;i<=10;){
    console.log(i++)
}


